Competition Two Stroke Oil Developed to meet the requirements of competition Motocross and Snowcross. Used exclusively by the two stroke Yamaha Factory Race Team riders. Class-Leading Lubrication A special base stock protects from wear and breakdown, reduces friction and allows for maximum horsepower. Low Deposits Special, synthetic additives reduce carbon and deposit build-up on pistons, rings and exhaust ports, for maximum horsepower and minimum wear. Greatly reduced visible smoke. Competition grade. Semi-synthetic formula.